* Only use one StringIO in ConfigString
* Rename the write_affinity_node_count function to be
write_affinity_node_count_fn
* Use comprehensions instead of six.moves.filter
* Rename OverrideConf to ProxyOverrideOptions
* Make ProxyOverrideOptions's __repr__ eval()able
* Various conf -> options renames
* Stop trying to handle a KeyError that should never come up
* Be explicit about how deep we need to copy in proxy/test_server.py
* Drop an unused return value
* Add a test for a non-"proxy-server" app name
* Combine bad-section-name tests
* Try to clean up (at least a little) a self-described "hokey test"
Related-Change: I3f718f425f525baa80045ba067950c752bcaaefc
Change-Id: I4e81175d5445049bc1f48b3ac02c5bc0f77e6f59
5ecf828b17